Jachin Rupe jachin

Selenium with Python

Author:	Baiju Muthukadan
Email:	baiju.m.mail AT gmail.com
Version:	0.3.2

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

	<?php
	/**
	* Convert a comma separated file into an associated array.
	* The first row should contain the array keys.
	*
	* Example:
	*
	* @param string $filename Path to the CSV file
	* @param string $delimiter The separator used in the file
	* @return array

	<div id="video-1-container" class="video">
	<video id="video-1" src="video/html5.mp4" width="480" height="204" controls>
	<!-- HTML5 video, for compatible browsers -->
	</video>
	</div>

	<script type="text/javascript">
	Ojay.onDOMReady(function() {
	// The video and the container need separate IDs to work around IE6's
	// unwillingness to locate video elements.

	<?php
	/**
	* Analyzes the output of an XDebug script trace
	*
	* The original version can be found here:
	* http://svn.xdebug.org/cgi-bin/viewvc.cgi/xdebug/trunk/contrib/tracefile-analyser.php?root=xdebug
	*
	* This version was created to work in PHP 5.2
	*/

	%!TEX TS-program = xelatex
	\documentclass[12pt]{scrartcl}

	% The declaration of the document class:

	% The second line here, i.e.
	% \documentclass[12pt]{scrartcl}
	% is a standard LaTeX document class declaration:
	% we say what kind of document we are making in curly brackets,
	% and specify any options in square brackets.

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#